As classified in WFO snapshot
December 2024
latest classification for this taxon
variety
Physocarpus alternans var. typicus
J.T.Howell
This variety name was first published in Proc. Calif. Acad. Sci. , ser. 4, 20: 131 (1931)
This variety name has been reclassified since this snapshot. Its current preferred usage is a synonym .